| Alfred Stieglitz The Swimming Lesson [Camera Work, no. 36, pl. 11] 1906 (taken) 1911 (print) Photogravure 5 7/8 × 9 1/8 ins (14.9 × 23.1 cm) (image) 7 13/16 × 11 ins (19.8 × 28 cm) (sheet) Philadelphia Museum of Art From the Collection of Dorothy Norman, 1973, Accession Number: 1973-267-345 LL/72329
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